Debian GNU/Linux 7 syzkaller ttyS0

2017/10/30 07:37:43 parsed 1 programs
2017/10/30 07:37:43 executed programs: 0
syzkaller login: [   12.222379] BUG: unable to handle kernel paging request at fffffbfffffffffe
[   12.223058] IP: devpts_mntget+0x135/0x280
[   12.223431] PGD 7fff4067 P4D 7fff4067 PUD 7fff3067 PMD 7fff2067 PTE 0
[   12.224044] Oops: 0000 [#1] SMP KASAN
[   12.224390] Dumping ftrace buffer:
[   12.224708]    (ftrace buffer empty)
[   12.225054] Modules linked in:
[   12.225360] CPU: 2 PID: 2985 Comm: syz-executor0 Not tainted 4.14.0-rc5-next-20171018+ #8
[   12.226111] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
[   12.226857] task: ffff88003afd67c0 task.stack: ffff880039038000
[   12.227408] RIP: 0010:devpts_mntget+0x135/0x280
[   12.227830] RSP: 0018:ffff88003903fa50 EFLAGS: 00010a03
[   12.228315] RAX: dffffc0000000000 RBX: ffffffffffffffed RCX: ffffffff81ce4ac0
[   12.229024] RDX: 1ffffffffffffffe RSI: 0000000000000001 RDI: fffffffffffffff5
[   12.229659] RBP: ffff88003903fae0 R08: 0000000000000001 R09: 1ffff10007207f05
[   12.230266] R10: ffff88003903f760 R11: 0000000000000000 R12: 1ffff10007207f4a
[   12.230891] R13: ffff88003903fa70 R14: ffff88006d830780 R15: ffff88003903fb20
[   12.231505] FS:  00007ff221fdb700(0000) GS:ffff88006de00000(0000) knlGS:0000000000000000
[   12.232204] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.232699] CR2: fffffbfffffffffe CR3: 0000000068afa000 CR4: 00000000000006e0
[   12.233412] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   12.234871] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   12.235505] Call Trace:
[   12.235718]  ? devpts_fill_super+0xad0/0xad0
[   12.236047]  ? __alloc_fd+0x750/0x750
[   12.236335]  ptm_open_peer+0x11a/0x2f0
[   12.236630]  ? pty_unix98_install+0xa30/0xa30
[   12.236969]  tty_ioctl+0x50f/0x15f0
[   12.237259]  ? tty_vhangup+0x30/0x30
[   12.237569]  ? __lock_is_held+0xb6/0x140
[   12.237922]  ? trace_event_raw_event_sched_switch+0x8a0/0x8a0
[   12.238359]  ? rcu_note_context_switch+0x710/0x710
[   12.238732]  ? tty_vhangup+0x30/0x30
[   12.239009]  do_vfs_ioctl+0x1b1/0x1520
[   12.239299]  ? _cond_resched+0x14/0x30
[   12.239595]  ? ioctl_preallocate+0x2b0/0x2b0
[   12.239925]  ? selinux_capable+0x40/0x40
[   12.240228]  ? trace_hardirqs_off_caller+0x61/0x2c0
[   12.240605]  ? syscall_return_slowpath+0x2b3/0x510
[   12.240969]  ? finish_task_switch+0x1f6/0x740
[   12.241358]  ? security_file_ioctl+0x89/0xb0
[   12.241692]  SyS_ioctl+0x8f/0xc0
[   12.241946]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   12.242296] RIP: 0033:0x447c89
[   12.242537] RSP: 002b:00007ff221fdabd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   12.243115] RAX: ffffffffffffffda RBX: 00007ff221fdb6cc RCX: 0000000000447c89
[   12.243637] RDX: 00000000205f9000 RSI: 2000000000005441 RDI: 0000000000000003
[   12.244152] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
[   12.244671] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   12.245231] R13: 0000000000000000 R14: 00007ff221fdb9c0 R15: 00007ff221fdb700
[   12.245760] Code: c1 ea 03 80 3c 02 00 0f 85 56 01 00 00 48 8b 5d 90 e8 e0 73 a0 ff 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 24 01 00 00 4c 8b 7b 08 48 b8 00 00 00 00 00 
[   12.247229] RIP: devpts_mntget+0x135/0x280 RSP: ffff88003903fa50
[   12.247669] CR2: fffffbfffffffffe
[   12.247921] ---[ end trace d5db0843b03320b9 ]---
[   12.248261] Kernel panic - not syncing: Fatal exception
[   12.248678] Dumping ftrace buffer:
[   12.248933]    (ftrace buffer empty)
[   12.249240] Kernel Offset: disabled
[   12.249513] Rebooting in 86400 seconds..